The basic list raised by Gary is good. But there's nothing wrong with
parellelogram sticks.

If its less than 1:40 I'm not interested. It should be 'expandable' so
an optional upgrade to 18m wings perhaps?

The World class was based on price and it flopped heavily so sorry
price is way down the list.

I dont see why a 1:40 ship cant be built for low cost. Surely its the
airfoil and materials technology that have come on. An 1:40 libelle
must be possible with a modern aifoil or a 1:45 LS4